Pouncing-roller



UNITED STATES APATENT OFFICE.

BENJAMIN M. WALSH, OF BRIDGEFORT, CONNECTICUT.

POUNCING-ROLLER.

SPECIFICATION forming part of Letters Patent No. 438,786, dated October 21, 1890.

Application filed January 17, 1890. Serial No. 337,220. (N0 model.)

.To @ZZ whom t may concern.-

Be it known that I, BENJAMIN M. WALSH, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invent-ed certain new and useful Improvements in Pouncing Rollers; andI do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap pertains to make and use the same.

My invention is applicable to all classes of machines in which sand-paper or other material is used to pounce, smooth, or finish articles in process of manufacture, and is especially adaptedl to retaining the strips of sand'- paper upon pouncing-rollers used in the manufacture of hats. It is of course well understood that sand-paper when used upon rollers rotating at a high rate of speed quickly becomes Worn and has to be renewed, and that considerable time is lost in removing the strips of sand-paper from the rollers and fitting a'nd securing new ones thereon. In order to avoid this difficulty and make the operation of removing a strip of sand-paper and placing a new one in position a perfectly simple one and capable of being performed with but an instants loss of time, I have devised the simple and novel means of securing strips of sand-paper upon rollers, of which the following description, in connection with the accompanying drawings, is a specification, numbers being used to denote the several parts.

Figure l is a perspective of my novel pouncing-roller with the shell removed 5 Fig. 2, a perspective of the shell detached; Fig. 3, a cross-section of the roller with a strip of sandpaper thereon and engaged by the shell and locked in position for use; Fig. 4, alongitudinal section of a shell having simply a slot in one side instead of the circular opening, as in the other form; and Fig. 5 is aperspective of akey for turningthe shell to lock the strip of sand-paper in position for use. Y

l denotes the roller, which, so far as my invention is concerned, may be of any suitable shape or size, and of any preferred materialfor example, wood, metal, or vulcanite fiber.

2 denotes a hole through the center to receive a shaft, (not shown,) to which the roller is secured in any suitable manner; 3, alongitudinal hole through the rollerl near the periphery thereof, and 4 a slot leading from said hole outward radially to the periphery of the roller.

5 denotes a cylindrical shell, which just closely fits in hole 3 and is provided with a longitudinal slot 6, leading from the periphery into the interior thereof. The slot may simply lead straight into the shell, as shown in Fig. 4; but I preferably make a cylindrical opening 7, extending from one end almost to the other, one end of the shellin this form being partially closed by a web 8. used to give strength and rigidity to the shell, and also in order that an angular opening 9 may be made therein to receive a corresponding projection l0 on a key 1l. In the other form-that is, the one shown in Fig. Li--slot 6 in the shell extends from end to end. The web at one end is dispensed with, and the angular opening to receive the key is formed in the end of the shell itself. The shellis preferably made of metal, and maybe either cast and then finished or, if preferred, the central opening or slot, or both, may be formed in a solid piece of metal.

12 denotes a strip of sand-paper or other material suitable for the special purpose required upon the periphery of the roller.

The operation is as follows: The strip is cut slightly longer than the periphery of the roller, but does not require to be accurately fitted. The shell is turned by the key so that the slot in the shell will register with the slot in the roller. The two ends of the sand-paper are then passed through the slot in the roller into theslot in the shell, and the latter is rotated in either direction, as lclearly shown in Fig. 3, sufiiciently to draw the sand-paper tightly about the roller.

Suitable means may be provided to lock the shell in position, although in practice I have found it wholly unnecessary, and for that reason have shown no means ot locking the shell. I make the shell to fit closely in the hole in the roller, and find the friction sufficient to hold it j ust where it is placed, no matter athow This web is high a rate of speed the roller may be rotated, web, a. slot leading from the opening in the and that it will stay in position until the pzishell to the periphery thereof, and an angular per is worn out. opening in the Web,adapted to receive a key, Having thus described my invention, I substantially as and for the purpose sei; forth. 5 C1aim- In testimony whereof I afx my signature in l 5 The combination, with a, roller having` alonpresence of tWo Witnesses. gitndinai Circular opening near its periphery BENJAMIN M. WALSH. and a slot leading therefrom, of :L shell adapt- Witnesses: ed to fit in the opening in the roller and 112W- A. M. VVOOSTER,

lo ing e circular opening closed at one end by a, ARLEY I. MUNSON. 

